<Select LabelInValue
        DefaultValue="_defaultValue"
        Style="width:120px"
        OnChange="OnChange">
    <SelectOption Value="jack">Jack (100)</SelectOption>
    <SelectOption Value="lucy">Lucy (101)</SelectOption>
</Select>

@using OneOf;
@code
{
    private LabeledValue _defaultValue = new LabeledValue("jack", "Jack (100)");
    private void OnChange(OneOf<string, IEnumerable<string>, LabeledValue, IEnumerable<LabeledValue>> value, OneOf<SelectOption, IEnumerable<SelectOption>> option)
    {
        Console.WriteLine($"selected: ${value}");
    }
}
